package com.phei.netty.broadcast;

import java.util.List;

import io.netty.buffer.ByteBuf;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.socket.DatagramPacket;
import io.netty.handler.codec.MessageToMessageDecoder;
import io.netty.util.CharsetUtil;

public class LogEventDecoder extends MessageToMessageDecoder<DatagramPacket>{

	
	@Override
	protected void decode(ChannelHandlerContext ctx, DatagramPacket dp, List<Object> out) throws Exception {
		ByteBuf data = dp.content();
		int idx = data.indexOf(0, data.readableBytes(), LogEvent.SEPARATOR);
		String  filename = data.slice(0, idx).toString(CharsetUtil.UTF_8);
		String logMsg =  data.slice(idx + 1,data.readableBytes()).toString(CharsetUtil.UTF_8);
		LogEvent event = new  LogEvent(dp.sender(), System.currentTimeMillis(),filename,logMsg);
		out.add(event);
		
		
	}

}
